Fifty-litre carboy would be the most economical size. Carboys may be retained without charge for two months.
50升的瓶子应是最经济的尺码,这些瓶子可免费保存两个月。
Perhaps his greatest belief was in an Indian phrase which he called the force of truth.
也许他最大的信仰就在他称之为真理的力理"这一印度隽语里。